Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.4 A 0.2 A None of these 0.3 A 0.6 A 0.4 A 0.2 A None of these 0.3 A 0.6 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 micro A is: None of these 10000A one-millionth of an ampere one million amperes 1000 A None of these 10000A one-millionth of an ampere one million amperes 1000 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The graph of current gain versus collector current indicates that the current gain varies enormously equals the collector current divided by the base current None of these varies slightly is contant varies enormously equals the collector current divided by the base current None of these varies slightly is contant ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for voltage in a parallel circuit? The total voltage in a parallel circuit is equal to the average value of the individual voltages None of these The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch The total voltage in a parallel circuit is always less than the value of the smallest voltage The total voltage in a parallel circuit is equal to the average value of the individual voltages None of these The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit The total voltage of a parallel circuit is the same as the voltages across each branch The total voltage in a parallel circuit is always less than the value of the smallest voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: multiplies the capacitive reactance by 6.28 doubles the amount of a capacitive reactance cuts the capacitive reactance in half None of these has no effect on the capacitive reactance multiplies the capacitive reactance by 6.28 doubles the amount of a capacitive reactance cuts the capacitive reactance in half None of these has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 30 Ohm 10 Ohm 20 Ohm None of these 100 Ohm 30 Ohm 10 Ohm 20 Ohm None of these 100 Ohm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS